Trolley-pole stand



(No Model.)

J. R. GRIFFITHS. TROLLEY POLE STAND.

No. 455,322. Patented July. 7, 1891;.

Wm. Ag I Q3333.

UNITED STATES PATENT ()FFICE.

JAMES R. GRIFFITHS, OF ALLEGHENY, PENNSYLVANIA.

TROLLEY-POLE STAN SPECIFICATION forming part of Letters Patent No.455,322, dated July '7, 1891 Application filed January 20, 1891. SerialNo. 378,499. (NomodeL) To all whom it may concern.-

Beit known that 1, JAMES R. GRIFFITHS, a subject of the Queen of GreatBritain, residing at Allegheny, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inTrolley-Pole Stands; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it pertains to make and use the same,reference being had to the accompanyng drawings, which form apart ofthis specificatiom My invention relates to an improved trolley-polestand; and it consists in certain details of construction andcombination of parts, as will be more fully set forth hereinafter.

In the accompanying drawings, Figure l is a plan view of my improvedstand, showing the general construction of the same. is a side elevationpartly in section. Fig. 3 is an end view of one of the pivoted links,

- together with the ball-and-socket bearing of the pole.

To construct a trolley-pole stand for electrically-propelledrailway-cars, I construct a frame 1, of suitable size and form ofconstruction, and provide the same with a socket 2, in which aball-bearing 3 is made to operate in a manner that a trolley-pole 4:,secured to the same, may be free to move or swing in several directions.Attached to each side of this frame 1 are brackets 5, which extendhorizontally from said frame 1, and are provided with upward extensions6, to which suitable springs 7 are connected by means of hook or eyebolt8, which affords a means of increasing or diminishing the tension onsaid springs 7. The other extremities of these springs 7 are attached topivoted links 9, hinged to an upward extension of each bracketo by meansof a transverse bar 10, having hooks 11 attached thereto, and aconnecting pivoted link'or bar 12. These firstmentioned links 9 projectdownward and are provided at their lower extremities with couplings 13,pivotally attached thereto. Attached to the ball 3, which supports thetrolley-pole, are semicircular links or arms 15,

Fig. 2

which pass beneath the socket 2, and are pivoted or connected to acoupling 16. Pivotally connected to this coupling 16 and to those 13,attached to'the links 9, are connecting-bars 17, which completes theapparatus.

The operation of this stand is obvious.

The pole 4: may be brought to a horizontal.

position, either to the front or rear of the stand, and have sufficientside movement to insurea perfect contact with the line while movingabout curves.

Having thus described my invention, I claim- 1. The herein-describedtrolley-pole stand, consisting of the frame 1, the ball-and-socketbearing for the pole-it, the brackets 5, the springs 7 and a means forregulating the ten sion of the same, the pivoted links 9, suitablyattached or coupled to said springs 7,and the bars 17, connecting thelinks 9 to the ball 3, all arranged and combined for service substantially as and for the purpose described.

2. In a trolley-pole stand, the combination of a supporting-frame havingthe socket, the trolley-pole fitted in said socket and adapted. to movetherein, and means, substantially as described, to permit a lateralmovement of the trolley-pole, as and for the purpose set forth.

3. In a trolley-pole stand, the combination of a supporting-frame havinga socket in the upper part thereof, the trolley-pole having a ballfitting in said socket, the fixed brackets projecting laterally from theframe, the springs, andvertical links pivoted in the frame and securedat their lower ends to the ball byintermediate connections,substantially as and for the purpose set forth.

4. In a trolley-pole stand, the combination of a supporting-frame havinga socket, a trolley-pole having a ball-bearing therein, the fixedbrackets, the vertical links pivotally secured in the brackets andhaving their upper ends connected by springs with the ends of thebrackets, and the arms or links 5 pivot-ally secured to the ball andconnected with the lower ends of the vertical arms, substantially asdescribed.

5. The combination, with a stand, of a trolley-pole having aball-and-socket connection with the stand, and the tension-springsconnected by intermediate devices with the ball, substantially asdescribed.

6. The combination, with astand, of asocket rigid therewith, a ballfitted snugly in the socket, the pole carried by the ball, an arm orlink attached directly to the ball, the springs, the vertical linkspivoted to fixed brackets on the frame and having the springs connectedthereto, and the inclined links 17, connected to the vertical links andto the arm of the ball, substantially as described.

7. The combination of a stand having the fixed brackets, the socketrigid with the stand, the ball fitted snuglyin the socket, the

trolley-pole carried by the ball, the vertical links pivoted to thebrackets and connected through intermediate devices with the ball, thesprings, and adjustable devices connecting the springs with the bracketsand the links in a manner to regulate the tension of thespri-ngs,'substantia-lly as described.

In' testimony that I claim the foregoing I hereunto affix my signaturethis 3d day of December, A. D. 1890.

JAMES R. GRIFFITHS. [L.

In presence of M. E. HARRISON, JOHN C. THOMPSON.

